Home / 21,368.36-29,483.65-12,411.23

Finding the Fourth Proportional to 21,368.36, 29,483.65 and 12,411.23

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Solution

The fourth proportional to 21,368.36, 29,483.65 and 12,411.23 is: 17,124.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.36 : 29,483.65 = 12,411.23 : x
  2. Step 2: Convert to fraction form
    21,368.36/29,483.65 = 12,411.23/x
  3. Step 3: Cross multiply
    21,368.36x = 29,483.65 × 12,411.23
  4. Step 4: Simplify right side
    21,368.36x = 365,928,159.67
  5. Step 5: Solve for x
    x = 365,928,159.67/21,368.36
  6. Step 6: Final answer
    x = 17,124.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.